19 lines
476 B
SQL
19 lines
476 B
SQL
create table species_trait
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(
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species_id INTEGER not null
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references species
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on delete cascade,
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trait_id INTEGER not null
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references trait
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on delete restrict,
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source TEXT not null,
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level INTEGER,
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param_value TEXT,
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primary key (species_id, trait_id, source),
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check (source IN ('AUTOMATISCH', 'TYPISCH', 'EMPFOHLEN'))
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);
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create index idx_species_trait_trait
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on species_trait (trait_id);
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